High-Efficiency Hydrogen Fuel Cell Powers Compact Devices

摘要

The newly developed solid fuel hydrogen fuel cells from ROHM Co., Ltd., Aquafairy Corp. and Kyoto University pack in high power yet are compact and lightweight, making them fit for smartphones and other portable devices. Using an original technology, calcium hydride was solidified in a sheet configuration in order to stably produce hydrogen through the water drop method. An original low-profile, integrated cell-forming technology was also used. In the process, about 4.5 liters of hydrogen was generated from a sheet less than 3cc in volume and provided an output of 5Whr. These hydrogen fuel cells can operate at ambient temperatures and emit no carbon dioxide or other hazardous gases.